Latest Tutorials| Questions and Answers|Ask Questions?|Site Map



Home Answers Viewqa Java-Beginners How to write a rsa algorithm using thread
Login         

View Questions and Answers by Category

Advertisements


 
Have Programming Question? Ask it here!
 
 
 


lavanya
How to write a rsa algorithm using thread
0 Answer(s)      3 years and 9 months ago
Posted in : Java Beginners


Hi... This my **rsa algorithm sequential code..can u anyone plz change/convert to concurrent java or parallel this code..

print("code sample");

import java.security.KeyPairGenerator;

import java.security.KeyPair;

import java.security.PublicKey;

import java.security.PrivateKey;

import javax.crypto.Cipher;

public class rsa {

private static byte[] encrypt(byte[] inpBytes, PublicKey key,

  String xform) throws Exception {

Cipher cipher = Cipher.getInstance(xform);

cipher.init(Cipher.ENCRYPT_MODE, key);

return cipher.doFinal(inpBytes);

}

private static byte[] decrypt(byte[] inpBytes, PrivateKey key,

  String xform) throws Exception{

Cipher cipher = Cipher.getInstance(xform);

cipher.init(Cipher.DECRYPT_MODE, key);

return cipher.doFinal(inpBytes);

}

public static void main(String[] unused) throws Exception {

long starttime =System.currentTimeMillis();

String xform = "RSA/NONE/PKCS1PADDING";

// Generate a key-pair

KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA");

kpg.initialize(1024); // 1024 is the keysize.

KeyPair kp = kpg.generateKeyPair();

PublicKey pubk = kp.getPublic();

PrivateKey prvk = kp.getPrivate();



byte[] dataBytes =

    "J2EE Security for Servlets, EJBs and Web Services".getBytes();



byte[] encBytes = encrypt(dataBytes, pubk, xform);
System.out.println(encBytes);

byte[] decBytes = decrypt(encBytes, prvk, xform);
System.out.println(decBytes);

String res=new String(decBytes);

boolean expected = java.util.Arrays.equals(dataBytes, decBytes);

System.out.println("Test " + (expected ? "SUCCEEDED!" : "FAILED!"));
System.out.println(res);
long endtime=System.currentTimeMillis();

System.out.println("Time required for sequential rsa algorithm:"+(endtime-starttime)+"millisecond");

}

}

THANKS

LAVANYA


Advertisement
View Answers

Related Tutorials/Questions & Answers:
How to write a rsa algorithm using thread
How to write a rsa algorithm using thread   Hi... This my **rsa algorithm sequential code..can u anyone plz change/convert to concurrent...("Time required for sequential rsa algorithm:"+(endtime-starttime)+"millisecond
Spring application in RSA 7.0.0.3
Spring application in RSA 7.0.0.3  how to build a sample spring application using RSA 7.0.0.3
Advertisements
Write an applet to display scrolling image in an applet window using thread.
Write an applet to display scrolling image in an applet window using thread.  Write an applet to display scrolling image in an applet window using thread
How to Explain different way of using thread?
How to Explain different way of using thread?  Hi, How to explain how to using different thread in Java program
How to Explain different way of using thread?
How to Explain different way of using thread?  Hi, How to explain how to using different thread in Java program........   Hi, There are different types Thread in Java program. Here is the explain how to using thread
How to write to file using FileOutputStream
How to write to file using FileOutputStream  Hi friends, Please help me in java program. How to write to file using FileOutputStream? thanks,   Hi, To write a file using FileOutputStream, we have to use
How to write to file using FileWriter
How to write to file using FileWriter  hi, How to write to file using FileWriter thanks,   Hi, To writing in a file in Java program we... of the FileWriter class can be created using the following of its constructor i.e. FileWriter
algorithm
algorithm  Hi all, i have a task which is create an algorithm from... on this matter... thanks a lot. here is my algorithm: > Input... for end for each end while //write candidates into final test set
algorithm
algorithm  convert this algorithm to java code IsSample_PAS: 1.for every attribute value aj belongs to ti do begin (here aj=1,2...,ti=1,2..) 2.if(CF... false; (this is algorithm from ieee paper QUALITY AWARE SAMPLING AND ITS
How to write a search functionality using javascript/jquery
How to write a search functionality using javascript/jquery   How to write a search functionality using javascript/jquery for ex: im searching "s" names it wil display "s" names
how to write a program to search a record using mvc2
how to write a program to search a record using mvc2   how can we write a code to search a record in table by using java bean as model, servlet as contoller and jsp as view
how to read and write an xml file using java
how to read and write an xml file using java  Hi Can anyone help me how to read and write an xml file which has CData using java
Algorithm
Algorithm  How can i write a code for sort ascending order to ten given numbers. Thank you   Receive the numbers into an array. double num[10]. or int num[10]. You then need to traverse the array elements and swap
implementing an algorithm using multi threads - Java Beginners
implementing an algorithm using multi threads  Hi i need to implement... data from one thread to another thread. I am posting my algorithm which needs...; double d=-6; double F=0.0; double lamsq=0.25; Thread t1 = new Thread
CREATE AND WRITE FILE THREAD JAVA
CREATE AND WRITE FILE THREAD JAVA  Hi guys I was wondering how can I make this program in java with threads. I need to create a file and write in it (i know how to do that) but by listening in some port all the data that is being
how to write a jsp form using html
how to write a jsp form using html  hi, i have written the code as below... but it is showing error. please help me how to resolve it. .html file <html> <head><title>StudentForm</title></head>
Asymmetric algorithm - Java Beginners
Asymmetric algorithm  hybrid Digital image embedding using invisible watermarking with rsa and dct algorithm? please send me this project with source code........ regards subramanian
how to use Excel Template to write excel file using java
how to use Excel Template to write excel file using java  How to use Excel template to write data in that file using java
how to use Excel Templet to write excel file using java.
how to use Excel Templet to write excel file using java.  how to use Excel Templet to write excel file using java
how to write weighted moving average code using 2d-array
how to write weighted moving average code using 2d-array  how to write weighted moving average code using 2d-array
creating trafficsignal using thread
creating trafficsignal using thread  please give me code how to create trafic signal using thread and give me it to my email jvp_9040@ymail.com thanks
Algorithm - Java3D
Algorithm  what is NaiveSimilarity algorithm? How we use this algorithm to recognize a face in face recognition (using Java)? which is the steps involved in this? Which is the database used to store an image
how to write greater than symbol in a file using java
how to write greater than symbol in a file using java  Hello I want to write < and > symbol in a file but its coming like > and < Please help me   Hi Friend, You can write the symbols by taking them
How to Retrieve Data from the database and write into excel file using Java
How to Retrieve Data from the database and write into excel file using Java  Hi, I am trying to develop an small application where i trying to retrieve Data from the database and store the details in excel file. Please can
how to destroy java thread
how to destroy java thread  how to destroy java thread?   This will help .. Shutting Down the Java Thread
How to Differenciate Main Thread and Child Thread in Java
How to Differenciate Main Thread and Child Thread in Java  hi... Main Thread and Java Child Thread. Please Suggest any example or online link for references. Thanks,   Hi, There are two types of Thread used
efficiency of an algorithm
efficiency of an algorithm  how can we calculate the best or worst case efficiency of an algorithm
efficiency of an algorithm
efficiency of an algorithm  how can we calculate the best or worst case efficiency of an algorithm
write a programm using java
write a programm using java  print the following using java programming
How to write hello world by using Multiple Writers in pdf
How to write hello world by using Multiple Writers in pdf... to tell you how you can write a simple "Hello World" word in a pdf, rtf... com.lowagie.text.html.HtmlWriter will help you to write the content in Html file
Conflation Algorithm
Conflation Algorithm  implementation of conflation algorithm is possible using java?? conflation requires file handling a text contains stop words(is,or,and,.,)remove this words remove suffix(ing,ed..) remove equal words count
 

 

 

DMCA.com